Mysql将结果作为单行加入

Question

我有一张客户表

@Html.DisplayNameFor(model => model.UserEmail)
@Html.EditorFor(model => model.UserEmail)

和varchar表

customers
+---------+
|   id    |
+---------+
|    1    |

这是我的选择陈述

customers_varchar
+-------+-----------+
|  id   |   value   |
+-------+-----------+
|  1    | firstname |
+-------+-----------+
|  1    +  lastname |

我得到的是

SELECT c.id, cv.value FROM customers AS c
LEFT JOIN customer_varchar AS cv 
ON c.id = cv.id;

我想要的是

ROW 1
1 | firstname

ROW 2
1 | lastname